Season 1 Episode 1: 6.56 million U.S. viewers
…
Season 3 Episode 1: 6.15 million U.S. viewers

Not many projects on the American TV can boast of the increase in the viewers’ amount with every new season. One of them is drama series «Chicago Fire», the pilot episodes of which has been watched by 6,61 million Americans and the premiere of the second season has attracted about 8,9 million TV viewers.

Taking into account such a great success, the rights holders, having made the necessary research, encouraged Wolf Films and Universal TV studios for the new episodes (Season 3) production.

According to the official announcements of NBC management, the third season of «Chicago Fire» television series will be launched in September 23, 2014, as well as its spin-off is to be financed.

According to the Network President, Bob Greenblatt, both projects are worth being broadcast for 2014/2015.

UPDATE 1 (November 9, 2015): NBC renewed the series for a fifth season.